Esempio n. 1
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    def handle(self, request):
        decoder = WMS10GetMapDecoder(request.GET)

        bbox = decoder.bbox
        srs = decoder.srs
        layers = decoder.layers

        if not layers:
            raise InvalidParameterException("No layers specified", "layers")

        srid = crss.parseEPSGCode(
            srs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
        )
        if srid is None:
            raise InvalidCRS(srs, "srs")

        # WMS 1.1 knows no swapped axes
        minx, miny, maxx, maxy = bbox

        subsets = Subsets((
            Trim("x", minx, maxx),
            Trim("y", miny, maxy),
        ), crs=srs)

        root_group = lookup_layers(layers, subsets)

        result, _ = self.renderer.render(
            root_group, request.GET.items(), subsets=subsets,
            width=int(decoder.width), height=int(decoder.height)
        )
        return to_http_response(result)
Esempio n. 2
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    def handle(self, request):
        decoder = WMS13GetMapDecoder(request.GET)

        bbox = decoder.bbox
        time = decoder.time
        crs = decoder.crs
        layers = decoder.layers

        if not layers:
            raise InvalidParameterException("No layers specified", "layers")

        srid = crss.parseEPSGCode(
            crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
        if srid is None:
            raise InvalidCRS(crs, "crs")

        if crss.hasSwappedAxes(srid):
            miny, minx, maxy, maxx = bbox
        else:
            minx, miny, maxx, maxy = bbox

        subsets = Subsets((
            Trim("x", minx, maxx),
            Trim("y", miny, maxy),
        ),
                          crs=crs)
        if time:
            subsets.append(time)

        # TODO: adjust way to get to renderer

        styles = decoder.styles

        if styles:
            styles = styles.split(',')

        from eoxserver.services.ows.wms.layerquery import LayerQuery

        render_map = LayerQuery().create_map(
            layers=layers,
            styles=styles,
            bbox=bbox,
            crs=crs,
            width=decoder.width,
            height=decoder.height,
            format=decoder.format,
            transparent=decoder.transparent,
            bgcolor=decoder.bgcolor,
            time=time,
            range=decoder.dim_range,
            bands=None,
            wavelengths=None,
            elevation=None,
            cql=decoder.cql,
        )

        from eoxserver.render.mapserver.map_renderer import MapserverMapRenderer

        return MapserverMapRenderer().render_map(render_map)
Esempio n. 3
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    def bbox(self):
        bbox = self._bbox
        crs = self.crs
        srid = crss.parseEPSGCode(
            self.crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
        if srid is None:
            raise InvalidCRS(crs, "crs")

        if crss.hasSwappedAxes(srid):
            miny, minx, maxy, maxx = bbox
        else:
            minx, miny, maxx, maxy = bbox

        return (minx, miny, maxx, maxy)
Esempio n. 4
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    def handle(self, request):
        decoder = WMS13GetMapDecoder(request.GET)

        bbox = decoder.bbox
        time = decoder.time
        crs = decoder.crs
        layers = decoder.layers

        if not layers:
            raise InvalidParameterException("No layers specified", "layers")

        srid = crss.parseEPSGCode(
            crs, (crss.fromShortCode, crss.fromURN, crss.fromURL)
        )
        if srid is None:
            raise InvalidCRS(crs, "crs")

        if crss.hasSwappedAxes(srid):
            miny, minx, maxy, maxx = bbox
        else:
            minx, miny, maxx, maxy = bbox

        subsets = Subsets((
            Trim("x", minx, maxx),
            Trim("y", miny, maxy),
        ), crs=crs)
        if time:
            subsets.append(time)

        renderer = self.renderer
        root_group = lookup_layers(layers, subsets, renderer.suffixes)

        result, _ = renderer.render(
            root_group, request.GET.items(),
            width=int(decoder.width), height=int(decoder.height),
            time=decoder.time, bands=decoder.dim_bands, subsets=subsets,
            elevation=decoder.elevation,
            dimensions=dict(
                (key[4:], values) for key, values in decoder.dimensions
            )
        )

        return to_http_response(result)
Esempio n. 5
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    def handle(self, request):
        decoder = WMS13GetMapDecoder(request.GET)

        bbox = decoder.bbox
        time = decoder.time
        crs = decoder.crs
        layers = decoder.layers
        elevation = decoder.elevation

        if not layers:
            raise InvalidParameterException("No layers specified", "layers")

        srid = crss.parseEPSGCode(
            crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
        if srid is None:
            raise InvalidCRS(crs, "crs")

        if crss.hasSwappedAxes(srid):
            miny, minx, maxy, maxx = bbox
        else:
            minx, miny, maxx, maxy = bbox

        subsets = Subsets((
            Trim("x", minx, maxx, crs),
            Trim("y", miny, maxy, crs),
        ))
        if time:
            subsets.append(time)

        renderer = self.renderer

        result, _ = renderer.render(layers, (minx, miny, maxx, maxy), crs,
                                    (decoder.width, decoder.height),
                                    decoder.format, time, elevation,
                                    decoder.styles)

        return to_http_response(result)
Esempio n. 6
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    def handle(self, request):
        decoder = self.get_decoder(request)

        minx, miny, maxx, maxy = decoder.bbox
        x = decoder.x
        y = decoder.y
        time = decoder.time
        crs = decoder.srs
        layer_names = decoder.layers

        width = decoder.width
        height = decoder.height

        # calculate the zoomlevel
        zoom = calculate_zoom((minx, miny, maxx, maxy), width, height, crs)

        if not layer_names:
            raise InvalidParameterException("No layers specified", "layers")

        srid = crss.parseEPSGCode(
            crs, (crss.fromShortCode, crss.fromURN, crss.fromURL))
        if srid is None:
            raise InvalidCRS(crs, "crs")

        field_mapping, mapping_choices = get_field_mapping_for_model(
            models.Product)

        # calculate resolution
        # TODO: dateline
        resx = (maxx - minx) / width
        resy = (maxy - miny) / height

        p_minx = x * resx
        p_miny = y * resy
        p_maxx = (x + 1) * resx
        p_maxy = (y + 1) * resy

        filter_expressions = filters.bbox(filters.attribute(
            'footprint', field_mapping),
                                          p_minx,
                                          p_miny,
                                          p_maxx,
                                          p_maxy,
                                          crs,
                                          bboverlaps=False)

        if time:
            filter_expressions &= filters.time_interval(time)

        cql = getattr(decoder, 'cql', None)
        if cql:
            cql_filters = to_filter(parse(cql), field_mapping, mapping_choices)
            filter_expressions &= cql_filters

        # TODO: multiple sorts per layer?
        sort_by = getattr(decoder, 'sort_by', None)
        if sort_by:
            sort_by = (field_mapping.get(sort_by[0], sort_by[0]), sort_by[1])

        styles = decoder.styles

        if styles:
            styles = styles.split(',')
        else:
            styles = [None] * len(layer_names)

        dimensions = {
            "time": time,
            "elevation": decoder.elevation,
            "ranges": decoder.dim_range,
            "bands": decoder.dim_bands,
            "wavelengths": decoder.dim_wavelengths,
        }

        feature_info_renderer = get_feature_info_renderer()

        layer_mapper = LayerMapper(
            feature_info_renderer.get_supported_layer_types(), "__")

        layers = []
        for layer_name, style in zip(layer_names, styles):
            name, suffix = layer_mapper.split_layer_suffix_name(layer_name)
            layer = layer_mapper.lookup_layer(name,
                                              suffix,
                                              style,
                                              filter_expressions,
                                              sort_by,
                                              zoom=zoom,
                                              **dimensions)
            layers.append(layer)

        map_ = Map(width=decoder.width,
                   height=decoder.height,
                   format=decoder.format,
                   bbox=(minx, miny, maxx, maxy),
                   crs=crs,
                   bgcolor=decoder.bgcolor,
                   transparent=decoder.transparent,
                   layers=layers)

        result_bytes, content_type, filename = feature_info_renderer.render_feature_info(
            map_)

        response = HttpResponse(result_bytes, content_type=content_type)
        if filename:
            response[
                'Content-Disposition'] = 'inline; filename="%s"' % filename

        return response